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How to Detect LEL

How to Detect LEL

The 100% LEL concentration for kerosene is 0.7% volume (= 7000 ppm). That means 10% LEL kerosene = 700 ppm. If you use a catalytic LEL sensor, and set the alarm at 10% LEL, even if the sensor responded perfectly for kerosene, it would take a concentration over 23 times higher than the exposure limit to activate the alarm.

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